Added OpenSceneGraph setup script
Added OpenSceneGraph setup script

MRNAS/NTRT,NASA-Tensegrity-Robotics-Toolkit/NTRTsim,MRNAS/NTRT,NASA-Tensegrity-Robotics-Toolkit/NTRTsim,MRNAS/NTRT,dacastro12/NTRT_Update,dacastro12/NTRT_Update,dacastro12/NTRT_Update,MRNAS/NTRT,NASA-Tensegrity-Robotics-Toolkit/NTRTsim,dacastro12/NTRT_Update,NASA-Tensegrity-Robotics-Toolkit/NTRTsim,NASA-Tensegrity-Robotics-Toolkit/NTRTsim,MRNAS/NTRT,dacastro12/NTRT_Update,MRNAS/NTRT